Rotary-piston internal-combustion engine.



C. E. ANDERSON & E. C. FEY. ROTARY PISTON WNTERNAL COMBUSTION ENGINE. APPLICATION FILED AUG,3. 1914. 1,147,838. I Patented July 27, 1915.

2 SHEETS-SHEET l.-

A TTOR/VEYS C. E. ANDERSON & E.

C. FEY.

ROTARY PISTON INTERNAL COMBUSTION ENGINE.

APPLICATION FILED was. I914.

Patented July 27, 1915.

2 SHEETS-SHEET 2.

I I Ir q I I I IIIIIIIIIIIIIIflIl/IIIIIIIII/l/AE).

WWI/111111 III /7 I 2/ m t ll WITNESSES:

INVENTO S CARL E. ANDERSON AND EDMUND C. FEY, OF SAN FRANCISCO, CALIFORNIA.

ROTARY-PISTON INTERNAL-COMBUSTION ENGINE.

To all whom it may concern Be it known that we, CARL E. ANDERSON and EDMUND C. FEY, citizens of the United States, residing at the city and county of San Francisco and State of California, have invented certain new and useful Improvements in Rotary-Piston Internal-Combustion Engines, of which the following is a specification.

The present invention relates to improvements in internal combustion engines, and the invention has for its principal objects to dispensewith the reciprocating pistons now universally employed in engines of this type, and to provide an engine having rotary pistons which are actuated by the explosion and expansion of compressed gases forced into the casing in which said piston is mounted; to provide a structure of the above type constructed with an abutment adapted to cooperate with the piston; and to provide means operated at timed intervals by the rotation of the piston to force explosive mixture into the casing under pressure and to operate said abutments.

Vith the above mentioned and other objects in view, the invention consists in the novel construction and combination of parts hereinafter described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention. a

To more fully comprehend the invention, reference is directed to the accompanying drawings, wherein Figure 1 is avertical sectional view of our invention. Fig. 2 is a transverse sectional view taken on line 2-2 of Fig. 1, looking in the direction of the arrow. Fig. 3 is a view in elevation disclosing the under part of the casing to more-fully present the abutments Specification of Letters Patent.

Patented July 27, 1915.

Application filed August 3, 1914. Serial No. 854,865.

and supported adjacent each end on bear- I ings 5.

Each piston is formed on its peripheral edge for'approximately one-half of its circumference with an outwardly projecting head 6 having a beveled front end 7 and a rear flat face 8 and said heads, when but two pistons are employed in an engine, are arranged diametrically opposite to each other. A disk 9 is interposed between the pistons 3, and disks 10 are positioned one on either outer surface of the pistons and said disks which are carried by the shaft 4 are of a diameter substantially the same as that of the heads of the pistons and are adapted to cooperate on theirperipheral edges with suitable packing rings 11 extending partially around the interior of the casing 1 from a point adjacent the inlet openings 12 to a point adjacent the exhaust opening 13. The packing rings are forced into contact with the peripheral edgesof the disks bv the springs 15, and thus provide a non-leaky joint during the power stroke of the pistons.

Positioned over each inlet opening 12 and secured to the casing 1 is a firing chamber 16 in the outer end of each of which is positioned a spark plug 17 connected to a suitable source of supply of electric current. A fuel inlet channel 18 connects each chamber 16 with the lower portion of a compression cylinder 19 and in each of said channels is mounted to open into the chamber 18 a spring seated valve 20. A fuel feed connection 21 provided with a check valve 22 communicates with the lower end of each cylinder 19 and is adapted to be supplied with fuel from any suitable source. A pump plunger 23 is mounted to reciprocate in each cylinder 19 and the same are connected by links 24 to the long end 25 of suitable crank arms pivotally mounted on one of the end plates 2.

The short. end 26 of each crank arm carries av pin 27 which operates in a groove 28 formed eccentrically in a cam disk 29, one of which disks is positioned on said shaft 4. adjacent each end plate and are keyed to rotatev therewith. The cam disks are arranged on the shaft 4 so that the grooves '28 therein will be opposing each other so that the plungers will be on opposite strokes. Suitable packing rings 28, normally forced outwardly bysuitable springs, are mounted in suitable recesses in the casing 1 and are positioned one on either side of the inlet openings 12, to provide a non-leaky joint between the piston heads 6 and the chamber 16 whenthe heads are passing the same.

Suitable abutments 30 operate through openings 31 in the under side of the casing 1 adjacent the inlet openings 12 and said abutments are formed with a suitable fiat face 32, between which and the flat rear faces 8 of the heads 6 the gases under compression are exploded to rotate the pistons. The abutments which are of a width substantially the same as the pistons are each formed with a shank 33 pivotally supported on a rod 34: secured by brackets 35 to the casing 1. Arms 36 extend from each of the shanks 33 adjacent the pivotal point thereof and said arms carry at their ends laterally projecting pins 37 which cooperate with the peripheral surface 38 of the cam disks 29, the surfaces being so formed relative to each other that the abutments will be alternately on their outward and inward strokes. Suitable supporting flanges 39 are secured to the casing 1.

The motor being assembled, as in the drawings, the same operates in the following manner :On the rotation of the shaft 4, in the direction of the arrow, the cam wheels 29 will be rotated, which will present the portion A of one of the cam surfaces 38 to one of the pins 37, which will force inwardly the abutment associated with the piston about to receive the impact of the exploded charge of fuel. The pump plunger associated with this piston is at this time at approximately the end of its for-,

ward stroke, forcing a full charge of gaseous mixture from the pump 19 associated with the piston after the fiat face 8 of the piston passes the opening, at which time the charge under compression, as it rushes into the space between the abutment and the fiat face of the piston, which charge is exploded,

The exploded charge of gaseous mixture is confined between the face 8 of the head and the face 32 of the abutment, and causes the piston to rotate and finally escap'es through the exhaust opening 13 after the head passes the ends of the packing rings 11. The continued rotation of the shaft presents the portion B of one of the cam surfaces 38 to the pin 37 and permits the weight of the abutment shank 33 to draw the abutment downwardly to permit the' head 6 to pass the same. The above mentioned operations take place in a two piston engine at timed intervals in such amanner that one head will be approximately opposite the exhaust opening when the other is opposite its inlet opening and about to re- I ceive the impact to propel the same.

We have designed an internal combustion eration, and, one which will develop the maximum of power at a minimum cost.

Having thusdescribed the invention What we claim and desire to Patent is 1. In an engine of the class described, the combination with a casing formed with fuel intake and discharge openings, a shaft rotatably mounted in said casing, a plurality of pistons in said casing and fixed to said shaft, circular disks of substantially the same diameter as the pistons mounted adjacent said pistons, and spring actuated means for cooperating with said disks to prevent leakage between said pistons and casing, a movable abutment associated with each of said protect by Letters pistons, and means for timely forcing charges of fuel into said casing, and means for igniting said fuel charges.

2. In an engine of the class described, the combination of a casing formed with fuel intake and exhaust openings, a shaft rotatably mounted therein, cam members car-x ried by said shaft, pistons in said casing adapted for rotation with said shaft, each of said pistons provided on its periphery wlth a head adapted when in contact with sa1d in'let openings to close the same, a firing.

chamber detachably mounted on the casing and associated with each inlet opening, said chamber composed of circular walls and a top portion, a sparking plug in the top por-.

tion of said chamber, a fuel inlet in the wall in said chamber, compression pumps adja-- cent the firing chambers and detachably mounted on the casing, a piston 1n each compression pump and its associated firing compression pump and itsassociated firing chamber, and an abutment cooperating with each piston head, said abutments comprising a substantially L-shaped arm pivotally mounted on the exterior of the casing and 'a portion of the same in engagement with fuel from said compressionzpumps to the firing chambers, and means for timing the sparking of the plug in the firing chamber.

. In testimony whereof we have signed our names to this specification in the presence of two subscribing Witnesses.

CARL E. ANDERSON. EDMUND C. VVitnessesi HARRY A. To'rTEN, D. B. RICHARDS. 

